Fauzana Gazali, Eka Yusmaita, Nur Intan Feronika
A contextual approach-based module that consists of five components namely Relating, Experiencing, Applying, Cooperating, and Transferring (REACT) can help students find concepts. This research aims to develop a contextual approach-based module that contains critical thinking skills indicators on salt hydrolysis topics which have content validity and construct validity. Research instruments were construct validity questionnaires analyzed with Aiken V formula and a content validity questionnaire analyzed with CVR approach. The questionnaires were filled by 3 chemistry lecturers and 2 chemistry teachers at SMA 9 Padang. It was found that the average of V score for construct validity was 0.81 showing valid categories, while the CVR and CVI values of content validity were 0.98 and 1 respectively also showing valid categories. Therefore, it can be concluded that the salt hydrolysis module which is based on a contextual approach with REACT components for class XI learning is valid. © Published under licence by IOP Publishing Ltd.
Chemistry Departement, Universitas Negeri Padang, Air Tawar Barat, Prof. Dr. Hamka Stree Padang, West Sumatera, Indonesia
